SUSA Cooling Fan and Oil Pump Thermal Switch, 1/8"-27 NPT
- Free 100-Day Returns
- Free UK Delivery
- £31.49
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We aim to dispatch orders the same day if ordered before 3pm (Monday to Friday, excluding bank holidays). Orders placed over the weekend will be sent on the Monday, unless it's a bank holiday.
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We stand by the quality of our products, which is why we offer a generous 100-day return policy, even for custom-made items. This extended returns period gives you plenty of time to check the quality and performance of our products.
For full details, please visit our returns page.
SUSA Cooling Fan & Oil Pump Thermal Switch – Reliable, Automatic Temperature Control
Ensure precise temperature management in your oil or coolant system with the SUSA cooling fan and oil pump thermal switch. Designed for seamless integration into any system featuring a 1/8"-27 NPT threaded port, this switch automatically triggers a 12V cooling fan relay or oil pump relay when fluid reaches the preset temperature, enhancing efficiency and preventing overheating in high-performance applications.
Why Choose The SUSA Thermal Switch?
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Reliable Temperature Activation
Automatically engages a cooling fan relay or oil pump relay when fluid reaches the preset temperature, ensuring optimal performance and protection.
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Multiple Temperature Options
Available in three activation points – 82°C (180°F), 88°C (190°F), and 93°C (200°F) to suit various cooling and lubrication system requirements.
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Universal Compatibility
Designed for any 1/8"-27 NPT female port, making it ideal for inline port adapters.
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Essential for Cooling & Lubrication Systems
Perfect for oil pumps, engine cooling fans, transmission coolers, and auxiliary cooling systems, ensuring consistent performance under demanding conditions.
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For Relay Activation Only
Must be wired to trigger a relay, not directly to an electric fan or oil pump, as it is not rated for high current draw.
How Does a Thermal Switch Work?
A thermal switch is a temperature-sensitive device that automatically triggers a 12V electrical component when the fluid reaches a specific temperature. In automotive applications, it helps regulate cooling fans and oil pumps, preventing overheating and ensuring optimal operating conditions.
Built for Performance, Trusted by Professionals
From high-performance engines to precision cooling systems, the SUSA cooling fan and oil pump thermal switch delivers the reliability you need. Upgrade your system today for automated, worry-free temperature control!
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What is the SUSA Cooling Fan and Oil Pump Thermal Switch used for?
This thermal switch is designed to automatically activate a 12V cooling fan relay or oil pump relay when the fluid temperature reaches a preset level. It's ideal for managing temperatures in high-performance oil, coolant, or transmission systems.
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What activation temperatures are available?
The switch is available with the following activation temperatures:
- 82°C (180°F)
- 88°C (190°F)
- 93°C (200°F)
Each variant has a corresponding reset temperature to ensure proper cycling:
- 82°C activates at 82°C and resets at 74°C
- 88°C activates at 88°C and resets at 79°C
- 93°C activates at 93°C and resets at 85°C
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How is the switch installed?
The switch features a 1/8"-27 NPT male thread, allowing it to be installed into any compatible female port. It's commonly used with inline adapters, oil filter sandwich plates, or directly into engine blocks or cylinder heads that have the appropriate threading.
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Can the switch be wired directly to a fan or pump?
No, the switch is not designed to handle high current loads directly. It must be wired to activate a relay, which in turn controls the fan or pump. This setup ensures safe and reliable operation.
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What are the electrical specifications of the switch?
The switch has the following electrical characteristics:
- Terminal Size: Amp #250 Tab (1/4")
- Electrical Rating: 16A at 250VAC, 15A at 125VAC, 10A at 250VAC (Resistive Load)
- Circuit Resistance: 50mΩ Maximum
- Insulation Resistance: 100MΩ Minimum @ DC 500V
- Dielectric Strength: AC 1250V (1 Minute) or AC 1800V (3 Seconds)
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Is the switch compatible with your custom braided hoses?
Yes, the switch can be integrated into systems using our custom braided hoses, provided that the system includes a component with a 1/8"-27 NPT female port for installation.
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Is the switch reusable?
Yes, the switch is designed for repeated use. It can be removed and reinstalled in another suitable application as needed.
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